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Oracle Tutorials - What Is a Static Data Dictionary

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What Is a Static Data Dictionary?

Data dictionary tables are not directly accessible, but you can access information in them through data dictionary views. To list the data dictionary views available to you, query the view DICTIONARY. Many data dictionary tables have three corresponding views:

  • An ALL_ view displays all the information accessible to the current user, including information from the current user's schema as well as information from objects in other schemas, if the current user has access to those objects by way of grants of privileges or roles.
  • A DBA_ view displays all relevant information in the entire database. DBA_ views are intended only for administrators. They can be accessed only by users with the SELECT ANY TABLE privilege. This privilege is assigned to the DBA role when the system is initially installed.
  • A USER_ view displays all the information from the schema of the current user. No special privileges are required to query these views.

(Continued on next topic...)

  1. What Is Oracle?
  2. What Is an Oracle Database?
  3. What Is an Oracle Instance?
  4. What Is a Parameter File?
  5. What Is a Server Parameter File?
  6. What Is an Initialization Parameter File?
  7. What Is System Global Area (SGA)?
  8. What Is Program Global Area (PGA)?
  9. What Is a User Account?
  10. What Is the Relation of a User Account and a Schema?
  11. What Is a User Role?
  12. What Is a Database Schema?
  13. What Is a Database Table?
  14. What Is a Table Index?
  15. What Is an Oracle Tablespace?
  16. What Is an Oracle Data File?
  17. What Is a Static Data Dictionary?
  18. What Is a Dynamic Performance View?
  19. What Is a Recycle Bin?
  20. What Is SQL*Plus?
  21. What Is Transport Network Substrate (TNS)?
  22. What Is Open Database Communication (ODBC)?

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